Water filter



Feb. 7, 1933. w. R, HILDEBRAND 1,895,310

WATER FILTER Filed Deo. ll, 1929 2 Sheets-Sheet l fig] Feb. 7, 1933. w. R. HILDEBRAND 1,895,310

WATER FILTER Filed Dec. l1, 1929 2 Sheets-Sheet 2 IWI/67721074:

Patented Feb. 7, 1933 Umrlezn 1 STATES PATENT oFFics WILLIAM n. HILDEBRAND, or cH'IcAGo, ILLINOIS WATER FILTER Application mea December 11, 1929. serial No. 413381. 7 zjf This invention relates to water filters, particularly to the type used for lfiltering drinking water and water. used for domestic purposes that requires purification. l

One of the objects of the invention is to produce a filter that willy be economical of. manufacture and ,of use.

Another object of the invention is to provide means whereby the water may be run '10 throughfthe filtering medium in the device upon drawing water or switched so as to clean the impurities accumulated in the filter chamber.

Another object of the invention is to so connect 'the` device to its source of supplythat by by-passing it to be usedfor purposes not needing purification, a fresh quantity of water willbe supplied for ltering. i

Another object is-to attain` these and other ends which will appear and be pointed out in the claims. i

In the drawings: v,

Fig. lis an elevation of the filter shown as connected for use; f

' Fig. 2 is an elevation'with parts in section and parts broken away to disclose certain features of construction;

F ig. Sis a top plan view of a fitting which forms the bottom of the filter body; -v v Fig. 4 is a bottom view of the part shown in Fig.\3;

Fig. 5 is a detail view of one. of the ports taken as indicated at the line 5 5 on Figq; Fig. 6 is a section at the line 5 5, taken on g. 1 Vshowing the filter mounting `and the way it is connected to a supply pipe;

Figs. 7 and 8 are structures disclosing detail views of the lower fitting taken as indio cated at the lines 7 .-7 and 8-8 of Figs. 8 and 7, respectively. Y

The filter here shown is mounted for use by first disconnecting the usual service faucet A and interposing a fitting of the device between it and the service pipe B, which serves also to support the entire device and mounted against the usual splash apron indicated at D. When filtered water is to be used the faucet C of the filter is opened and unfiltered water as supplied through pipe B is forced through the filtering medium of the device; the usual water pressure is calculated .to be'suliicient` forthis purpose.V The impure matterv in the water is `.arrested by this filtering medium. l/Vhen faucet A is opened, wateris drawn directly from theservice pipe B, that is, this faucet does not cause the .Y water tocourse through the filtering medium, but only through a part of thedevice, changing and renewing the water content-thereof 'and also oo washing away the matter floating in the outer l filter chamber.

An outer shell 1 extends.` between the bottom fitting 2 and the cap memberfand sur# rounds an innerV shell 4, whichis the-body proper. The V shell'is spaced away from the body shell forming a space.' The filtering medium indicated at 7 may be of the nature of porous stone, or the like, and is of'sufficient surface extent and volume soas to pery;

mit an amount of water to pass through, equal tothe capacity of the filter hydrant C. This filter medium is preferably proportioned jto occupy almost all of the space within the shell 4 so that there will be a minimum quantity of water standing in the receptacle awaiting purification, and also to more readily flush the impurities of filtration uponopening the faucet A when water is drawn off' that does not require purification. l

A convenient arrangement fori mountingv they deviceis by the fitting 8,7shown in 4detail in Figs. 6, 7 and 8; The service pipe B. enters theitting at Stand communicates 4through la duct 9 with a pipe 10; this pipe enters the botc tomfitting 2 at 10a and leads the water through the port 11 and the central vertical communicates with the'space 13 and thence down through the pipe 1,5, connected to --the fitting-2 at 15a and at Sato the fitting 8, in which is a duct 16 which leads tothe faucet A. 1 The filtering stone v7 is in -the'form of an open-ended' hollow cylinder and is mounted with its lower end closely sealed against leale 1(10 e fitting 2 shown in Figs. 2 and 8) ,which i age by the gasket 7 a, upon which the casing 4 is screwed down tightly.

Water admitted to the interspace 13, by virtue of the porosity of the element 7 seeps therethrough to the space 18 between it and the central pipe 12. This space is in communication with the faucet C through the duct 2O and the portway 21 in the fitting 2, shown in Figs. 3, 4 and 5.

As long as the faucet A remains closed and the faucet C is open, water ,will `course through from pipe B, through duct 9 (in the fitting 8) and pipe 10 to duct 11 in *bottomv casting 2, communicating with the central pipe 12 and through a suitable outlet (not shown) at the top end of the pipe 12 to the interspace 13, 'becoming purified by seeping through the lter element 7 and into space 18, out through port 21 and` duct 20 and nally drawn off through the faucet C,

It will be noted that there is no reservoir other than that formedwithin the device itself, that the filter element is self-fiushing or automatic in action, and that under ordinary .Circumstances `a ySufficient amount of water, (that will not require purification) will be run through .theA device to keep the filtering element in a sanitary condition.

Ihougha Vspecific embodiment of the invention ,has been shown and described, it will be understood that many chan-ges may be made without departing fromthe spirit of the invention. .s

I claim:

, 1, In awater filter, means for connecting same to a water supply pipe, consisting of a fitting attached thereto, a base casting for thefilter secured to the bottom thereof, vertical parallel pipes connecting the said fitting to the said base casting, said vertical pipes aording means for circulating 'unfiltered water to and from the filter.

" 2. In a water filter connected to a water supply pipe, a fitting for making such connection, saidfitting also constituting means for mounting the filter .;y means forconnecting the filter to said tting, said connecting means comprising hollow tubular members affording 'water circulation therethrough, to and from the filter, a faucet also associated with the fitting, a duct inthe fitting communicating with the supply pipe, and a duct communicating with the said faucet, both of said ducts connected to the filter by means of the said tubular members. r v 3. A filter comprising a mounting base and a filtering element mounted thereon and an outer casing surrounding the filtering element, the filtering element having a central bore or passage, a pipe mounted on the base and extended up throughv the central bore of the filtering element, said base havingv an inlet duct extending from an inlet on the base to the lower end of said pipe, whereby the liquid supply may pass through the duct in also having a duct having an opening communicating with the lower end of the cent-rafl boreof the filtering element, the base also having an outlet device at the other end of said last mentioned duct, whereby Athe liqf uid after passing up through the central pipe and into the outside space, may'pass through the filtering y.element to be filtered and thence downwardlyin the central bore thereofto` said outlet duct andthrough' the same to the outlet device thereon'to permit the withdrawal 'of filtered liquid.

4. A filter .having a base serving as a support for an outer casing'and also for a filtering elementarranged within 'the `casing with a space between saidelement and the casing, said element having a central bore containing a supply pipe and the base vhaving a supply duct running to theilower end of said pipe and also having: an'l outlet duct extending down from thelower end of said outside space .to an outlet device and also having another duct provided with an aperture communicating with the lower end of the'filtering element bore and extending outward to a side outlet device,

5. A filter havingabase serving as a support for a filtering elementand its containing` case, said base being provided o n its oppo site sides with nozzles one of which is a supply nozzle and the other an outlet nozzle, and a fitting arranged belowv said base and comprising a pair of pipes extending side by side and having their upper ends connected with and coupled to said nozzle devices, and a bottom memberhaving sockets 'to receive said side by side pipes and also having an outlet nozzle' or faucet andV being provided with ducts from said faucet to eachof said upright pipes to permit the faucet to discharge liquid from either of said pipes as desired.

In witness whereof, I hereunto "subscribe my name this 9th day of December, A. D., i929. -f I y' WILLIAM R.' IIILDEBRAND. 

